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Sam Ravnborgf5e706a2008-07-17 21:55:51 -07001#ifndef __ASM_SPARC64_ELF_H
2#define __ASM_SPARC64_ELF_H
3
4/*
5 * ELF register definitions..
6 */
7
8#include <asm/ptrace.h>
9#include <asm/processor.h>
10#include <asm/uaccess.h>
11#include <asm/spitfire.h>
12
13/*
14 * Sparc section types
15 */
16#define STT_REGISTER 13
17
18/*
19 * Sparc ELF relocation types
20 */
21#define R_SPARC_NONE 0
22#define R_SPARC_8 1
23#define R_SPARC_16 2
24#define R_SPARC_32 3
25#define R_SPARC_DISP8 4
26#define R_SPARC_DISP16 5
27#define R_SPARC_DISP32 6
28#define R_SPARC_WDISP30 7
29#define R_SPARC_WDISP22 8
30#define R_SPARC_HI22 9
31#define R_SPARC_22 10
32#define R_SPARC_13 11
33#define R_SPARC_LO10 12
34#define R_SPARC_GOT10 13
35#define R_SPARC_GOT13 14
36#define R_SPARC_GOT22 15
37#define R_SPARC_PC10 16
38#define R_SPARC_PC22 17
39#define R_SPARC_WPLT30 18
40#define R_SPARC_COPY 19
41#define R_SPARC_GLOB_DAT 20
42#define R_SPARC_JMP_SLOT 21
43#define R_SPARC_RELATIVE 22
44#define R_SPARC_UA32 23
45#define R_SPARC_PLT32 24
46#define R_SPARC_HIPLT22 25
47#define R_SPARC_LOPLT10 26
48#define R_SPARC_PCPLT32 27
49#define R_SPARC_PCPLT22 28
50#define R_SPARC_PCPLT10 29
51#define R_SPARC_10 30
52#define R_SPARC_11 31
53#define R_SPARC_64 32
54#define R_SPARC_OLO10 33
55#define R_SPARC_WDISP16 40
56#define R_SPARC_WDISP19 41
57#define R_SPARC_7 43
58#define R_SPARC_5 44
59#define R_SPARC_6 45
60
61/* Bits present in AT_HWCAP, primarily for Sparc32. */
62
63#define HWCAP_SPARC_FLUSH 1 /* CPU supports flush instruction. */
64#define HWCAP_SPARC_STBAR 2
65#define HWCAP_SPARC_SWAP 4
66#define HWCAP_SPARC_MULDIV 8
67#define HWCAP_SPARC_V9 16
68#define HWCAP_SPARC_ULTRA3 32
69#define HWCAP_SPARC_BLKINIT 64
70#define HWCAP_SPARC_N2 128
71
72#define CORE_DUMP_USE_REGSET
73
74/*
75 * These are used to set parameters in the core dumps.
76 */
77#define ELF_ARCH EM_SPARCV9
78#define ELF_CLASS ELFCLASS64
79#define ELF_DATA ELFDATA2MSB
80
81/* Format of 64-bit elf_gregset_t is:
82 * G0 --> G7
83 * O0 --> O7
84 * L0 --> L7
85 * I0 --> I7
86 * TSTATE
87 * TPC
88 * TNPC
89 * Y
90 */
91typedef unsigned long elf_greg_t;
92#define ELF_NGREG 36
93typedef elf_greg_t elf_gregset_t[ELF_NGREG];
94
95typedef struct {
96 unsigned long pr_regs[32];
97 unsigned long pr_fsr;
98 unsigned long pr_gsr;
99 unsigned long pr_fprs;
100} elf_fpregset_t;
101
102/* Format of 32-bit elf_gregset_t is:
103 * G0 --> G7
104 * O0 --> O7
105 * L0 --> L7
106 * I0 --> I7
107 * PSR, PC, nPC, Y, WIM, TBR
108 */
109typedef unsigned int compat_elf_greg_t;
110#define COMPAT_ELF_NGREG 38
111typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
112
113typedef struct {
114 union {
115 unsigned int pr_regs[32];
116 unsigned long pr_dregs[16];
117 } pr_fr;
118 unsigned int __unused;
119 unsigned int pr_fsr;
120 unsigned char pr_qcnt;
121 unsigned char pr_q_entrysize;
122 unsigned char pr_en;
123 unsigned int pr_q[64];
124} compat_elf_fpregset_t;
125
126/* UltraSparc extensions. Still unused, but will be eventually. */
127typedef struct {
128 unsigned int pr_type;
129 unsigned int pr_align;
130 union {
131 struct {
132 union {
133 unsigned int pr_regs[32];
134 unsigned long pr_dregs[16];
135 long double pr_qregs[8];
136 } pr_xfr;
137 } pr_v8p;
138 unsigned int pr_xfsr;
139 unsigned int pr_fprs;
140 unsigned int pr_xg[8];
141 unsigned int pr_xo[8];
142 unsigned long pr_tstate;
143 unsigned int pr_filler[8];
144 } pr_un;
145} elf_xregset_t;
146
147/*
148 * This is used to ensure we don't load something for the wrong architecture.
149 */
150#define elf_check_arch(x) ((x)->e_machine == ELF_ARCH)
151#define compat_elf_check_arch(x) ((x)->e_machine == EM_SPARC || \
152 (x)->e_machine == EM_SPARC32PLUS)
153#define compat_start_thread start_thread32
154
155#define USE_ELF_CORE_DUMP
156#define ELF_EXEC_PAGESIZE PAGE_SIZE
157
158/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
159 use of this is to invoke "./ld.so someprog" to test out a new version of
160 the loader. We need to make sure that it is out of the way of the program
161 that it will "exec", and that there is sufficient room for the brk. */
162
163#define ELF_ET_DYN_BASE 0x0000010000000000UL
164#define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL
165
166
167/* This yields a mask that user programs can use to figure out what
168 instruction set this cpu supports. */
169
170/* On Ultra, we support all of the v8 capabilities. */
171static inline unsigned int sparc64_elf_hwcap(void)
172{
173 unsigned int cap = (HWCAP_SPARC_FLUSH | HWCAP_SPARC_STBAR |
174 HWCAP_SPARC_SWAP | HWCAP_SPARC_MULDIV |
175 HWCAP_SPARC_V9);
176
177 if (tlb_type == cheetah || tlb_type == cheetah_plus)
178 cap |= HWCAP_SPARC_ULTRA3;
179 else if (tlb_type == hypervisor) {
180 if (sun4v_chip_type == SUN4V_CHIP_NIAGARA1 ||
181 sun4v_chip_type == SUN4V_CHIP_NIAGARA2)
182 cap |= HWCAP_SPARC_BLKINIT;
183 if (sun4v_chip_type == SUN4V_CHIP_NIAGARA2)
184 cap |= HWCAP_SPARC_N2;
185 }
186
187 return cap;
188}
189
190#define ELF_HWCAP sparc64_elf_hwcap();
191
192/* This yields a string that ld.so will use to load implementation
193 specific libraries for optimization. This is more specific in
194 intent than poking at uname or /proc/cpuinfo. */
195
196#define ELF_PLATFORM (NULL)
197
Martin Schwidefsky0b592682008-10-16 15:39:57 +0200198#define SET_PERSONALITY(ex) \
Sam Ravnborgf5e706a2008-07-17 21:55:51 -0700199do { unsigned long new_flags = current_thread_info()->flags; \
200 new_flags &= _TIF_32BIT; \
201 if ((ex).e_ident[EI_CLASS] == ELFCLASS32) \
202 new_flags |= _TIF_32BIT; \
203 else \
204 new_flags &= ~_TIF_32BIT; \
205 if ((current_thread_info()->flags & _TIF_32BIT) \
206 != new_flags) \
207 set_thread_flag(TIF_ABI_PENDING); \
208 else \
209 clear_thread_flag(TIF_ABI_PENDING); \
210 /* flush_thread will update pgd cache */ \
David S. Millerd3584182009-05-07 15:36:13 -0700211 if (personality(current->personality) != PER_LINUX32) \
212 set_personality(PER_LINUX | \
213 (current->personality & (~PER_MASK))); \
Sam Ravnborgf5e706a2008-07-17 21:55:51 -0700214} while (0)
215
216#endif /* !(__ASM_SPARC64_ELF_H) */